Bolshevik Foma Korshunov returns to his village. Soon his son, seven-year old Mishka gets a new nickname - "little communist". When bandits come to the village Mishka, knowing that the reds are close, saddles his horse and hurry to warn them about the danger.

Olga is a seventh-grader who has a brilliant gift - she writes a beautiful poems...

Father and son exchange the bodies using the help of two student fairies.

A toboggan train is coming to the village from the construction site of a drilling rig: a tractor pulling a carriage on a snowy track. It's blizzarding, fuel is running out, the train gets off track, and the construction manager is in a bad mood: his wife has recently died of a heart attack, leaving behind a teenage son who is here. But the worse the weather gets, the warmer the relationship between the people. And help comes.

Thirty-year-old captain of the hockey team Duganov, a famous and experienced player, decides to fight for the sporting longevity of "old men" like him. Acutely experiencing a quarrel with his favorite girl, Duganov achieves participation in the decisive final match between the two strongest teams and achieves victory.

The film tells about the difficult and dangerous everyday life of submarine officers in love with their profession during the Cold War.

Anatoly Ruchyov is quite a talented guy. One day he decides to enter a prestigious Soviet university — the institute of international relations. But, alas, he overestimates his strength and doesn't achieve his goal. This saddens the young man a little, but he doesn't even think to lower his hands. Anatoly decides to go to military service and reach heights in this area. At first, it is a little lost, but, after the time has elapsed, it is mastered, because there is nowhere to go. Slowly he turns into a real exemplary fighter.

Spring, 1943. A military train is heading from a city, just liberated from the fascists. A special carriage with divisional printing-works is hitched to the train. Manager of the printing-works and correspondent expects he will travel alone, and even makes a prudent sign on the door - mines. But gradually the carriage starts to get filled with uninvited fellow travelers. The first were an injured soldier with a girl, then - a pregnant woman with escort, two communist party members, an actress, aunt Pasha, and others. The correspondent has nothing but to put up with it, because he cant turn out people, who suffer from the war, each in his/her own way.